Paper-making machine.



'1). A. SMITH & J. P-."MANN.

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- WMe/amo UNITED STATES r TE T OFFICE.

DANIEL A. SMITH, OF DRUMMOND, MARYLAND, AND JOHN P. MANN,--OF WASHINGTON,

' DISTRICT OF COLUMBIA, ASSIGNORS TO DISTRICT OF COLUMBIA PAPER MANU- FACTURING COMPANY, OF WASHINGTON, DI,STRICT OF COLUMBIA, A CORPORATION OF VIRGINIA.

PAPER-MAKING Macrame.

To all whom it may concern:

Be known'that \\'Q,-DANIEL A, SM1TH-, of Drummond, in the county of-M'ontgomcry and State of Maryland, and JOHN P. MANN, of \Vashington, District of Columbia, citizens of the United States, have invented certain new and useful Improvements in Paper-Making Machines, of which the following is a full and 'complete specification.

Our invention is an improvement in paper-making machines, and is more espe-' .cially an attachment which is'adapted to operate on the paper stock or layer of pulp during the making of the paper, so that the finished product will have stripes of different characteristics. -,Our invention relates more especially to an attachment for F ourdrinier machines, and 20 the primary object of the present invention is to provide an attachment which willoperate on the layer of pulp somewhere between the slices and conch-rolls to displace, and aggregate fibers'of the pulp in such manner that the finished paper will have dis tinct stripes of mottled appearance in the nature of-awater mark, such stripes in the present instance alternating with plain stripes, to produce an ornamental paper. 30 A further object of the present invention is to provide an apparatus for coloring or tinting the mottled stripe during the formation of the same. I In the present instance we accomplish these objects by the employment of a drag having spaced apart portions which impose pressureupon the surface of the layer of pulp to displace and aggregate fibersof the pulp in a line or stripe, and apply the color,

or tint through the inediumof the spaced apart engaging portions of the drag; all as hereinafter ,fully set forth and claimed.

In the accompanying. drawings, which form a part'of this spec1fication:-Figure 1 is a plan View, showing the application of the" striping device and including the appa-, ratus for tinting the stripes. Fig. 2 is a vertical sectional View through one of the tanks employed in supplying the color to. the striping devices, the section being on the line 22'of Fig. 1. Fig. 3 is a sectional View on the line 33 ofFig. 1.

Specification of Letter; Patent. Patented May 16, 1911. Application filed March 2, 1911. 'Serial No. 611,793.

, Like numerals of reference indicate like parts in all the figures of the drawings.

Our attachment is especially adapted. for application to Fourdrinier paper-making machines in which the pulp or paper stock is fed from the slices on to a wire inthe form of a layer or sheet and su )portedby said wire during the operation of extracting the water, or most of it, before the layer of pulp reaches the rollers. In this form of machine the attachment isapplied above the wire and layer of pulp somewhere be tween the slices and Handy-roll so that it may act-upon the fibers of the pulp before they become set.

Referring now to the drawings, 5 designates a supporting-Wire of a Fourdrinier papenmaking machine, and 6 designates a layer of pulp carried by the wire in. the operation of making paper, Suitabl y su IlQl'tGd above the wire and layer of pui thereon is a-strip offeltor othermateria as 7, one edge. of which is cut, away at intervals to provide a numbr ofspaced apart port-ions or members 7 adapted in the pres ent instance to drag upon the, layer of pulp and displace the fibers in such manner that the finished paper will show distinct stripes. In the present instance the strip of material 7 is supported by means of a cross-bar '8, to which it is attached at one end so that the spaced apart portions 7 at the other end may drag upon the layer of pulp. The ends of the cross-bar 8 may, and preferably do,

from the side rails of themaehine. It will Qbe understood, of course, that instead of providing a single sheet of felt or material having its outer edge cut away to form the engaging portions 7*, the latter may be formed by separate strips, but the advantage of the particular device shown will be a parent, inasmuch as the body portion of tlie stripwill serve to hold the engaging portions at the desired spaces apart.

In operation, theportions 7 by dragging 'npon the surface of the layer of pulp disj places or rolls some of the fibers into, irregularlv formed groups which'are not affeeted by thefurther making of-the 1 paper, and-when the web passes' from the ceases produce Wavy stripes it will only he neces;

sary to impart to the material a lateriil movement during the operation of the alttachment. Furthermore, as will be obvious. paper having a checkered design may he produced by lifting the engaging portions at intervals.

As heretofore stated, the stripes which appear on the finished paper by reason of the Wavy lines or markings formed during the making of the paper are Very distinctxand produce a paper of ornamental character;

but in some instances it is desired that these stripes be of a ditl'erent color or tint from the other or plain stripes, and in order to acco1n plish this we provide an apparatus for feed ing color to the spaced apart engaging portions 7. This apparatus comprises a mixing vat 9, connected to a supply tank 10, from which extends a distributing pipe ll having cocks 12 which discharge directly upon the engaging portions 7 of the drug '7, the distributing-pipe being provided Witha valve 13 for controlling the supply to the cooks. In the present instance the supply tank 10 is provided with two compartments. 10 and 10 ,separated by a partition 14, and the u per edge of this partition terminates a slig t distance below the upper end of the tank so that the liquid or color mixture may over flow from one compartment to the other, for the purpose herelnafter explained. The tank l0 is supplied from the vat 9 by means of a pump 15 and pipes 18, 16, one of the latter extending from the lower portion. of the vat While the other enters the bottom of the compartment 10 of the supply tank. There is also a drain pipe,,17, extending from the bottom of the compartment 10" of the supply-tank into the vet. In the operation of this color supplying ap'psratusjthe pump 15 is run so as to supply the liquid'or mixture 2. little faster than it is taken oil by the distributing pipe 11 which is connected to the compartment 10 so that the excess will overflow the partition 14: into the compartnientlll and returnto the mining vat byway of the drain pipe 17, [is will seen, theretore thcre is a constant agitation. of the colorin'xture in hoth the supply tank and vet, which will serve to keep the color thoroughly mixed at all times and therefore supply an euen color or list the engaging portions of the drag. ry providing sepa-- rate cooks for each cog portion. of the drag the amount of color mixture supplied to each may iiul'ep ndently regulated, and this necessary no to the decreasing pressure from coclr to i I In case stripes d it color should be required the ap; watus described may be duplicated, will be obvious.

Having thus described our in vention, What We claim new, and desire to secure by Letters-Patent is:

1. An attachment for paper nieking machines, comprising spaced apart and dragging over the surface of the layer of pulp to displace and aggregate some of the fibers, substantially as shown and described.

An attachment for paper making mechines. comprising a strip of material having spaced apart portions which drag over the surface or" the layer of pulp to displace and aggregate some of the fibers, substantially as shown and for the purpose set forth.

3. An attachment for paper--inaking ma chines, comprising e supporting-oar, and

means carried thereby and presenting spaced apart portions or members which dragover the surface of the layer of pulp to displace and aggregate some of the fibers, substan tially shown and for the purpose set forth.

l. An attachment for pepermaking inachines, comprising a supporting bar, and a strip of material attached thereto and cut away at its outer edge to provide spaced apart portions or members "which drag over the surface of the layer of pulp to displace and aggregate some of the fibers, substantially as shown and for the purpose setforth.

Anettaclnnent for paper making machines, comprising spaced. apart portions or fabric which drag over the surtace of the layer of pulp, and means for discharging color on the engaging portions or fabric, substantially as shown and for the purpose set forth.

(5. An attachment for paper-making m2" chines, comprising souced apart strips of fabric which drag over the surface of the layer of pula to displace and aggregate some of the liners, a color supply tank having a discharge pipe with cocks discharging on the strips of fabric, a lnlXlIig JiLt, means for conducting the overflow from the supply-tank into the mixing-vat, and a pump for supplying the supplytanlz: from the mixing-rat, suostantially shown and for the pu pose forth.

I. attachment for paper-melting niachin ngspaced apart strips of .t'f ar the surtece ot' the and agg egate havwe nth,

. ,ipiy tunic s with a partition over l: one may now into the other, a discharge-pipe from one of the In testimony whereof we have signed our 10 cmupnrtments of the supply-tank having 'names to this specification in the presence cocks (hschargmg on the stnps of fabmc, :L of two subs'cnblng wltnesses. nnxmg-vat, a pump taklng from the vat D ANIEL SMITH and discharging in one of the compartments JOHN P M ANN of the supply-tank, and a drain from the other compartment of the supply-tank t0 it-messes: the vat,-substzintia11y as shown and de- NEILL S. BROWN, scribed. JAMES W. HUGHES. 

